One World Trade Center gets spire, bringing it to its full 1,776-foot height

With the twists of a few final bolts, the steel spire atop One World Trade Center was installed Friday morning — raising the building’s height to a symbolic 1,776 feet.

In this handout photo provided by the Port Authority of New York and New Jersey, the final section of spire is installed atop One World Trade Center May 10, 2013 in New York City. Port Authority of New York and New Jersey via Getty Images

A sea of construction workers stared into the blue spring sky with pride and delight after the finishing touches were applied about 8 a.m.